Westinghouse 1490460 CONTACTOR STARTER INTERLOCK TYPE INBOARD L-60

Description:

The Westinghouse 1490460 L-60 is an inboard contactor/starter interlock assembly designed for use with Westinghouse motor starters and contactors. This interlock mechanism prevents two contactors from being energized simultaneously, providing safe and reliable operation in reversing starter, transfer control, and motor control applications. The device is commonly installed in motor control centers, industrial control panels, and automation systems where electrical and mechanical interlocking is required to prevent conflicting contactor operation. The 1490460 is identified as a Type Inboard L-60 interlock assembly and is commonly used with Size 3 and Size 4 contactors.

Applications:

The Westinghouse 1490460 L-60 interlock is commonly used in reversing motor starter circuits, conveyor systems, pumps, compressors, hoists, fans, and industrial machinery requiring forward/reverse motor control. It is installed between paired contactors to prevent simultaneous closure, helping protect motors and electrical equipment from damage caused by opposing contactor operation. The interlock is suitable for industrial motor control systems utilizing compatible Westinghouse Size 3 and Size 4 starter and contactor assemblies.

Technical Specifications:

• Manufacturer: Westinghouse Electric Corporation
• Part Number: 1490460
• Series: L-60
• Product Type: Contactor / Starter Interlock Assembly
• Interlock Type: Inboard Interlock
• Function: Prevents simultaneous operation of paired contactors
• Application: Reversing starters and motor control systems
• Compatible Contactor Sizes: Size 3 and Size 4
• System Compatibility: Westinghouse contactors and motor starters
• Installation Type: Contactor-mounted accessory
• Control Function: Electrical and mechanical interlocking
• Mounting Configuration: Inboard assembly design
• Intended Use: Motor starter and contactor interlocking
• Operating Environment: Industrial and commercial electrical applications
• Service Type: OEM replacement component
• Status: Discontinued manufacturer part commonly available as surplus inventory and replacement stock.

Common Replacements:

• Eaton L-60 Interlock Assembly
• Cutler-Hammer Contactor Interlock Kit
• Siemens Reversing Contactor Interlock Assembly